The peak season for an Old Orchard Beach vacation runs from Memorial Day through Labor Day, when Palace Playland, Funtown/Splashtown, and most beach vendors are fully open. The Thursday night fireworks by the Old Orchard Pier run from late June through Labor Day and are a must-see. If you prefer a quieter visit, late May and early September offer mild weather, thinner crowds, and easy access to all the Old Orchard Beach attractions — often at lower rates. Book early, especially for summer weekends, as rooms at Seagrass Inn fill up fast.